کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7832758 | 1503513 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ni/Al2O3-ZrO2 catalyst for CO2 methanation: The role of γ-(Al, Zr)2O3 formation
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Ni/Al2O3-ZrO2 catalyst for CO2 methanation: The role of γ-(Al, Zr)2O3 formation Ni/Al2O3-ZrO2 catalyst for CO2 methanation: The role of γ-(Al, Zr)2O3 formation](/preview/png/7832758.png)
چکیده انگلیسی
CO2 methanation could offer significant energy and environment benefits if efficient catalyst is developed. Ni-based catalyst is the most promising catalyst for this reaction. Herein, a series of ZrO2 doped Ni/Al2O3 catalysts were fabricated by a co-precipitation method, and their reactivities with respect to the CO2 methanation were evaluated. Catalytic activities of the ZrO2-doped Ni/Al2O3 catalysts for CO2 methanation are superior to the undoped one. Characterization results suggest that γ-(Al, Zr)2O3 solid solution is formed after the introduction of ZrO2, which results in weakening the NiO-Al2O3 interaction and inhibits the formation of spinel NiAl2O4. After activated by hydrogen reduction, those ZrO2-doped NiO/Al2O3 catalysts show smaller Ni nanoparticles sizes, and the one doped with 16â¯wt% ZrO2 (Ni/AZ16) possesses the smallest sizes of Ni nanoparticles and shows the highest reactivity in the CO2 methanation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 459, 30 November 2018, Pages 74-79
Journal: Applied Surface Science - Volume 459, 30 November 2018, Pages 74-79
نویسندگان
Yingying Zhan, Yangyan Wang, Dongmei Gu, Chongqi Chen, Lilong Jiang, Katsuomi Takehira,